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✏️ Editing: ClassDeclarationSniff.php

<?php
/**
 * Checks the declaration of the class and its inheritance is correct.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/HEAD/licence.txt BSD Licence
 */

namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\Classes;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Standards\PSR2\Sniffs\Classes\ClassDeclarationSniff as PSR2ClassDeclarationSniff;
use PHP_CodeSniffer\Util\Tokens;

class ClassDeclarationSniff extends PSR2ClassDeclarationSniff
{

/**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token
     *                                               in the stack passed in $tokens.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr)
    {
        // We want all the errors from the PSR2 standard, plus some of our own.
        parent::process($phpcsFile, $stackPtr);

// Check that this is the only class or interface in the file.
        $nextClass = $phpcsFile->findNext([T_CLASS, T_INTERFACE], ($stackPtr + 1));
        if ($nextClass !== false) {
            // We have another, so an error is thrown.
            $error = 'Only one interface or class is allowed in a file';
            $phpcsFile->addError($error, $nextClass, 'MultipleClasses');
        }

}//end process()

/**
     * Processes the opening section of a class declaration.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token
     *                                               in the stack passed in $tokens.
     *
     * @return void
     */
    public function processOpen(File $phpcsFile, $stackPtr)
    {
        parent::processOpen($phpcsFile, $stackPtr);

$tokens = $phpcsFile->getTokens();

if ($tokens[($stackPtr - 1)]['code'] === T_WHITESPACE) {
            $prevContent = $tokens[($stackPtr - 1)]['content'];
            if ($prevContent !== $phpcsFile->eolChar) {
                $blankSpace = substr($prevContent, strpos($prevContent, $phpcsFile->eolChar));
                $spaces     = strlen($blankSpace);

if ($tokens[($stackPtr - 2)]['code'] !== T_ABSTRACT
                    && $tokens[($stackPtr - 2)]['code'] !== T_FINAL
                    && $tokens[($stackPtr - 2)]['code'] !== T_READONLY
                ) {
                    if ($spaces !== 0) {
                        $type  = strtolower($tokens[$stackPtr]['content']);
                        $error = 'Expected 0 spaces before %s keyword; %s found';
                        $data  = [
                            $type,
                            $spaces,
                        ];

$fix = $phpcsFile->addFixableError($error, $stackPtr, 'SpaceBeforeKeyword', $data);
                        if ($fix === true) {
                            $phpcsFile->fixer->replaceToken(($stackPtr - 1), '');
                        }
                    }
                }
            }//end if
        }//end if

}//end processOpen()

/**
     * Processes the closing section of a class declaration.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token
     *                                               in the stack passed in $tokens.
     *
     * @return void
     */
    public function processClose(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();
        if (isset($tokens[$stackPtr]['scope_closer']) === false) {
            return;
        }

$closeBrace = $tokens[$stackPtr]['scope_closer'];

// Check that the closing brace has one blank line after it.
        for ($nextContent = ($closeBrace + 1); $nextContent < $phpcsFile->numTokens; $nextContent++) {
            // Ignore comments on the same line as the brace.
            if ($tokens[$nextContent]['line'] === $tokens[$closeBrace]['line']
                && ($tokens[$nextContent]['code'] === T_WHITESPACE
                || $tokens[$nextContent]['code'] === T_COMMENT
                || isset(Tokens::$phpcsCommentTokens[$tokens[$nextContent]['code']]) === true)
            ) {
                continue;
            }

if ($tokens[$nextContent]['code'] !== T_WHITESPACE) {
                break;
            }
        }

if ($nextContent === $phpcsFile->numTokens) {
            // Ignore the line check as this is the very end of the file.
            $difference = 1;
        } else {
            $difference = ($tokens[$nextContent]['line'] - $tokens[$closeBrace]['line'] - 1);
        }

$lastContent = $phpcsFile->findPrevious(T_WHITESPACE, ($closeBrace - 1), $stackPtr, true);

if ($difference === -1
            || $tokens[$lastContent]['line'] === $tokens[$closeBrace]['line']
        ) {
            $error = 'Closing %s brace must be on a line by itself';
            $data  = [$tokens[$stackPtr]['content']];
            $fix   = $phpcsFile->addFixableError($error, $closeBrace, 'CloseBraceSameLine', $data);
            if ($fix === true) {
                if ($difference === -1) {
                    $phpcsFile->fixer->addNewlineBefore($nextContent);
                }

if ($tokens[$lastContent]['line'] === $tokens[$closeBrace]['line']) {
                    $phpcsFile->fixer->addNewlineBefore($closeBrace);
                }
            }
        } else if ($tokens[($closeBrace - 1)]['code'] === T_WHITESPACE) {
            $prevContent = $tokens[($closeBrace - 1)]['content'];
            if ($prevContent !== $phpcsFile->eolChar) {
                $blankSpace = substr($prevContent, strpos($prevContent, $phpcsFile->eolChar));
                $spaces     = strlen($blankSpace);
                if ($spaces !== 0) {
                    if ($tokens[($closeBrace - 1)]['line'] !== $tokens[$closeBrace]['line']) {
                        $error = 'Expected 0 spaces before closing brace; newline found';
                        $phpcsFile->addError($error, $closeBrace, 'NewLineBeforeCloseBrace');
                    } else {
                        $error = 'Expected 0 spaces before closing brace; %s found';
                        $data  = [$spaces];
                        $fix   = $phpcsFile->addFixableError($error, $closeBrace, 'SpaceBeforeCloseBrace', $data);
                        if ($fix === true) {
                            $phpcsFile->fixer->replaceToken(($closeBrace - 1), '');
                        }
                    }
                }
            }
        }//end if

if ($difference !== -1 && $difference !== 1) {
            for ($nextSignificant = $nextContent; $nextSignificant < $phpcsFile->numTokens; $nextSignificant++) {
                if ($tokens[$nextSignificant]['code'] === T_WHITESPACE) {
                    continue;
                }

if ($tokens[$nextSignificant]['code'] === T_DOC_COMMENT_OPEN_TAG) {
                    $nextSignificant = $tokens[$nextSignificant]['comment_closer'];
                    continue;
                }

if ($tokens[$nextSignificant]['code'] === T_ATTRIBUTE
                    && isset($tokens[$nextSignificant]['attribute_closer']) === true
                ) {
                    $nextSignificant = $tokens[$nextSignificant]['attribute_closer'];
                    continue;
                }

break;
            }

if ($tokens[$nextSignificant]['code'] === T_FUNCTION) {
                return;
            }

$error = 'Closing brace of a %s must be followed by a single blank line; found %s';
            $data  = [
                $tokens[$stackPtr]['content'],
                $difference,
            ];
            $fix   = $phpcsFile->addFixableError($error, $closeBrace, 'NewlinesAfterCloseBrace', $data);
            if ($fix === true) {
                if ($difference === 0) {
                    $first = $phpcsFile->findFirstOnLine([], $nextContent, true);
                    $phpcsFile->fixer->addNewlineBefore($first);
                } else {
                    $phpcsFile->fixer->beginChangeset();
                    for ($i = ($closeBrace + 1); $i < $nextContent; $i++) {
                        if ($tokens[$i]['line'] <= ($tokens[$closeBrace]['line'] + 1)) {
                            continue;
                        } else if ($tokens[$i]['line'] === $tokens[$nextContent]['line']) {
                            break;
                        }

$phpcsFile->fixer->replaceToken($i, '');
                    }

$phpcsFile->fixer->endChangeset();
                }
            }
        }//end if

}//end processClose()

}//end class

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